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Tushar SahaTS

Tushar Saha

Senior Android Kotlin Multiplatform Engineer

€300/day
Barcelona, ES
8-15 years

Average response time: 1 hour

About Tushar

Accomplished Android Software Engineer with over a decade of experience in Kotlin and Java. I specialize in building scalable, efficient mobile applications with a focus on clean code principles and robust architecture. My background spans diverse industries like travel, classifieds, and on-demand services, where I've partnered with cross-functional teams to drive innovation. I'm passionate about creating high-quality user experiences by leveraging state-of-the-art technologies and continuously learning new best practices.
  • English

    Native or bilingual

Can work on-site
Barcelona (up to 50km)

Experience

  • SENNDER
    Senior Mobile Engineer
    May 2022 - Today (4 years and 1 month)
    Barcelona, Spain
    • Led the Android mobile team at sennder, a leading digital freight forwarding company in Europe, overseeing continuous development and maintenance of the application.
    • Managed the product development lifecycle, including prioritizing feature demands, managing the backlog, and planning sprints to ensure timely delivery.
    • Pioneered the adoption of a 100% Compose UI and the latest tech stack, focusing on building a high-pertormance app with a slick design system.
    • Implemented network and performance-efficient features by placing the critical
    • API calls in the background and battery-efficient background GPS tracking to ensure data reliability.
    • Designed and developed a hybrid webview-based solution for carrier authentication to allow carriers to manage orders on the go, improving their workflow efficiency.
    • Spearheaded the migration to Kotlin Multiplatform (KMM), enabling the iOS team to use a shared API layer and leading the initiative to rewrite the entire codebase for a single, unified solution.
    • Architected and implemented advanced features like smart geo-fencing and movement detection to predict driver progress, enabling a proactive incident reporting system.
    • Leveraged AI coding tools like Cursor and Claude to accelerate development by generating trivial Ul components, API models, schema, test cases, and to pre-review code for potential issues.
    Kotlin compose-ui coroutines mvvm unit-test
  • TRAVELPERK
    Senior Mobile Engineer
    September 2020 - February 2022 (1 year and 5 months)
    Barcelona, Spain
    • Maintained highly scalable architecture and high data integrity by providing offline-first features and tailored UI-UX driven by design systems.
    • Collaborated within autonomous squads to ensure alignment on cross-platform features through comprehensive documentation and guidelines directed by mobile guilds.
    • Coordinated incident management, prioritizing issues (fatal/non-fatal crashes, scoping with business importance) from customer-facing teams by analyzing observability dashboards (defining SLOs, SLAs, API health checks) and directing resolutions to respective squads.
    • Managed release processes as a driver for the release train, overseeing readiness of deliverables through regression and E2E tests and executing customized CI scripts.
    • Transitioned booking functionality from web view to native implementation, aligning cross-mobile API requirements, focusing on mobile-friendliness and developing feature modules, including UI components and services.
  • ADEVINTA
    Android Software Engineer
    September 2018 - September 2020 (2 years)
    Barcelona, Spain
    • Led scalable Android projects for leading classified marketplaces across Tunisia and the Dominican Republic.
    • Collaborated with geographically distributed teams, enhancing cross-cultural communication.
    • Integrated event and data-driven features using tools like Pulse, Segment, Amplitude, and Braze.
    • Optimized apps with profiler tools (Android Profiler, Leak Canary), ensuring peak memory and network efficiency.
    • Contributed to 'North Star' Design system SDK, UI toolkit used for company-wide products.
    • Executed unit and integration tests (Mockito, Espresso, WireMock), achieving comprehensive code coverage.
    • Organized CI/CD pipelines using Gradle plugins, improving build efficiency.

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Education

  • ENGINEERING
    2010
    ENGINEERING
  • Bachelor of Engineering
    Shahjalal University of Science and Technology
    Bachelor of Engineering

Skill set

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